Infinera Corporation is a San Jose, California-based vertically integrated manufacturer of Wavelength division multiplexing (WDM)-based packet optical transmission equipment.

[4] The startup remained in stealth mode until its first products were launched in 2004, although a few early media articles did describe the company's component technology - a photonic integrated circuit in indium phosphide.

[9][10][11] In August 2015, Infinera acquired Transmode, a supplier of metro packet-optical networking systems based in Stockholm, Sweden, following an offer made in April 2015.

This acquisition was closed on October 1, 2018, positioning Infinera as one of the largest vertically integrated optical network equipment providers in the world.

[19][20] The production efficiency of using monolithic integration with PIC has permitted Infinera to incorporate hundreds of advanced optical components into a small package to deliver capacity up to 800 gigabits per second (Gb/s) per wavelength.

As of July 2018, the company has its own fab in Sunnyvale, with component packaging occurring in Allentown, Pennsylvania, plus the former Transmode facility in Stockholm.

For many of its products, Infinera designs and manufactures in-house the photonic integrated circuits (PICs), the ASIC chips, and the hardware and software systems, including operating and management systems and software-defined network (SDN) software to extend network virtualization into the optical layer.